function [ status ] = mx_eyelink_dummy_open( )
%MX_eyelink_dummy_open Sets the EyeLink library to simulate an eyetracker 
% connection. Functions will return plausible values, but no data.
% 
% Remarks:
% The function eyelink_is_connected() will return -1 to indicate a simulated 
% connection.
% Returns:
% Always returns 0.
%
%----------------------------------------------------------------------------
% Copyright Eduardo Aponte 2013
% aponteeduardo@gmail.com